import { type Ascii85Standard } from "https://deno.land/std@0.188.0/encoding/ascii85.ts";
encode and decode for
Ascii85/base85 encoding.
This module is browser compatible.
Specifying a standard and delimiter
By default, all functions are using the most popular Adobe version of ascii85
and not adding any delimiter. However, there are three more standards
supported - btoa (different delimiter and additional compression of 4 bytes
equal to 32), Z85 and
RFC 1924. It's possible to use a
different encoding by specifying it in options object as a second parameter.
Similarly, it's possible to make encode add a delimiter (<~ and ~> for
Adobe, xbtoa Begin and xbtoa End with newlines between the delimiters and
encoded data for btoa. Checksums for btoa are not supported. Delimiters are not
supported by other encodings.)
Examples
Example 1
Example 1
import {
decode,
encode,
} from "https://deno.land/std@0.188.0/encoding/ascii85.ts";
const a85Repr = "LpTqp";
const binaryData = decode(a85Repr);
console.log(binaryData);
// => Uint8Array [ 136, 180, 79, 24 ]
console.log(encode(binaryData));
// => LpTqp